Added call to eliminate_phi_interferences. Enabled phi-destruction.
[libfirm] / ir / be / becopystat.c
index 7721164..a4c22cd 100644 (file)
 /**
- * @author Daniel Grund
- * @date 19.04.2005
+ * Author:      Daniel Grund
+ * Date:               19.04.2005
+ * Copyright:   (c) Universitaet Karlsruhe
+ * Licence:     This file protected by GPL -  GNU GENERAL PUBLIC LICENSE.
  */
-#include <stdlib.h>
-#include "list.h"
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include <string.h>
+#include "irgraph.h"
 #include "irprog.h"
-#include "beutil.h"
+#include "phiclass_t.h"
+#include "becopyopt.h"
 #include "becopystat.h"
+#include "xmalloc.h"
 
-struct _irg_stat_t {
-       struct list_head chain;
-       ir_graph *irg;
-       const char *irg_name;
-       int interferers, lb, max;
-       int copies[3];
-       //TODO double ilp_time;
-};
-
-typedef struct _all_stat_t {
-       const char *unit_name;
-       struct list_head irgs;
-} all_stat_t;
-
-static all_stat_t *all_stats = NULL;
-
-#define irg_list_entry(lh) list_entry(lh, irg_stat_t, chain)
-
-irg_stat_t *new_irg_stat(copy_opt_t *co) {
-       irg_stat_t *is, *curr;
-
-       if (!all_stats) {
-               all_stats = calloc(1, sizeof(*all_stats));
-               all_stats->unit_name = get_irp_prog_name();
-               INIT_LIST_HEAD(&all_stats->irgs);
-               is = calloc(1, sizeof(*is));
-               is->irg_name = "CUMULATIVE";
-               list_add_tail(&is->chain, &all_stats->irgs);
-       }
+#ifdef DO_STAT
+
+#define DEBUG_LVL 0 //SET_LEVEL_1
+static firm_dbg_module_t *dbg = NULL;
+
+static pset *all_phi_nodes;
+static pset *all_phi_classes;
+static pset *all_copy_nodes;
+
+void copystat_init(void) {
+       dbg = firm_dbg_register("ir.be.copystat");
+       firm_dbg_set_mask(dbg, DEBUG_LVL);
+
+       all_phi_nodes = pset_new_ptr_default();
+       all_phi_classes = pset_new_ptr_default();
+       all_copy_nodes = pset_new_ptr_default();
+       phi_class_init();
+}
+
+void copystat_reset(void) {
+       int i;
+       for (i = 0; i < ASIZE; ++i)
+               curr_vals[i] = 0;
+       del_pset(all_phi_nodes);
+       del_pset(all_phi_classes);
+       del_pset(all_copy_nodes);
+       all_phi_nodes = pset_new_ptr_default();
+       all_phi_classes = pset_new_ptr_default();
+       all_copy_nodes = pset_new_ptr_default();
+}
+
+/**
+ * Collect general data
+ */
+static void irg_stat_walker(ir_node *node, void *env) {
+       arch_env_t *arch_env = env;
+       curr_vals[I_ALL_NODES]++; /* count all nodes */
+
+       if (is_Block(node)) /* count all blocks */
+               curr_vals[I_BLOCKS]++;
+
+       if (is_Phi(node)) /* collect phis */
+               pset_insert_ptr(all_phi_nodes, node);
+
+       if (is_Copy(arch_env, node))
+               pset_insert_ptr(all_copy_nodes, node);
+}
 
-       /* look if we had this irg already */
-       list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain)
-               if (curr->irg == co->irg)
-                       return curr;
-
-       /* else create a new entry */
-       is = calloc(1, sizeof(*is));
-       is->irg = co->irg;
-       is->irg_name = get_entity_name(get_irg_entity(co->irg));
-       list_add_tail(&is->chain, &all_stats->irgs);
-       return is;
+void copystat_collect_irg(ir_graph *irg, arch_env_t *arch_env) {
+       irg_walk_graph(irg, irg_stat_walker, NULL, arch_env);
+       curr_vals[I_BLOCKS] -= 2; /* substract 2 for start and end block */
+       all_phi_classes = phi_class_compute_by_phis(all_phi_nodes);
 }
 
-void irg_stat_count(irg_stat_t *is, copy_opt_t *co, int phase) {
-       unit_t *curr;
-       int max = 0, copies = 0;
-
-       list_for_each_entry(unit_t, curr, &co->units, units) {
-               int i;
-               max += curr->interf + curr->node_count - 1;
-               const ir_node *root = curr->nodes[0];
-               int root_color = get_irn_color(root);
-               copies += curr->interf;
-               for (i=1; i<curr->node_count; ++i) {
-                       const ir_node *arg = curr->nodes[i];
-                       if (root_color != get_irn_color(arg))
-                               copies++;
+/**
+ * Collect phi node data
+ */
+static void stat_phi_node(be_chordal_env_t *chordal_env, ir_node *phi) {
+       int arity, i;
+       assert(is_Phi(phi));
+
+       /* count all phi phis */
+       curr_vals[I_PHI_CNT]++;
+
+       /* argument count */
+       arity = get_irn_arity(phi);
+       curr_vals[I_PHI_ARG_CNT] += arity;
+       if (arity > MAX_ARITY)
+               curr_vals[I_PHI_ARITY_E]++;
+       else
+               curr_vals[I_PHI_ARITY_S + arity]++;
+
+       /* type of argument {self, const, pred, glob} */
+       for (i = 0; i < arity; i++) {
+        ir_node *block_of_arg, *block_ith_pred;
+               ir_node *arg = get_irn_n(phi, i);
+
+               if (phi != arg) {
+                       curr_vals[I_COPIES_MAX]++; /* if arg!=phi this is a possible copy */
+                       if (nodes_interfere(chordal_env, phi, arg)) {
+                               DBG((dbg, LEVEL_1, "%e -- In Block %N: %n %N %n %N\n", get_irg_entity(chordal_env->irg), get_nodes_block(phi), phi, phi, arg, arg));
+                               curr_vals[I_COPIES_IF]++;
+                       }
+               }
+
+               if (arg == phi) {
+                       curr_vals[I_PHI_ARG_SELF]++;
+                       continue;
                }
+
+               if (iro_Const == get_irn_opcode(arg)) {
+                       curr_vals[I_PHI_ARG_CONST]++;
+                       continue;
+               }
+
+               block_of_arg = get_Block_cfgpred_block(get_nodes_block(phi), i);
+               block_ith_pred = get_nodes_block(get_irn_n(get_nodes_block(phi), i));
+               if (block_of_arg == block_ith_pred) {
+                       curr_vals[I_PHI_ARG_PRED]++;
+                       continue;
+               }
+
+               curr_vals[I_PHI_ARG_GLOB]++;
        }
+}
 
-       is->copies[phase] += copies;
-       if (phase == 0)
-               is->max += max;
-       if (phase == 1) {
-               is->interferers += co_get_interferer_count(co);
-               is->lb += co_get_lower_bound(co);
+/**
+ * Collect register-constrained node data
+ */
+static void stat_copy_node(be_chordal_env_t *chordal_env, ir_node *root) {
+       curr_vals[I_CPY_CNT]++;
+       curr_vals[I_COPIES_MAX]++;
+       if (nodes_interfere(chordal_env, root, get_Copy_src(root))) {
+               curr_vals[I_COPIES_IF]++;
+               assert(0 && "A Perm pair (in/out) should never interfere!");
        }
 }
 
-void irg_stat_print(irg_stat_t *is) {
-       printf("Irg %s: %3d %3d %3d %3d %3d %3d", is->irg_name, is->interferers, is->lb, is->copies[0], is->copies[1], is->copies[2], is->max);
+/**
+ * Collect phi class data
+ */
+static void stat_phi_class(be_chordal_env_t *chordal_env, pset *pc) {
+       int i, o, size, if_free, phis;
+       ir_node **members, *p;
+
+       /* phi class count */
+       curr_vals[I_CLS_CNT]++;
+
+       /* phi class size */
+       size = pset_count(pc);
+       if (size > MAX_CLS_SIZE)
+               curr_vals[I_CLS_SIZE_E]++;
+       else
+               curr_vals[I_CLS_SIZE_S + size]++;
+
+       /* get an array of all members for double iterating */
+       members = xmalloc(size * sizeof(*members));
+       for (i = 0, p = pset_first(pc); p; p = pset_next(pc))
+               members[i++] = p;
+       assert(i == size);
+
+       /* determine number of phis on this class */
+       phis = 0;
+       for (i = 0; i < size-1; ++i)
+               if (is_Phi(members[i]))
+                       phis++;
+       if (phis > MAX_CLS_PHIS)
+               curr_vals[I_CLS_PHIS_E]++;
+       else
+               curr_vals[I_CLS_PHIS_S + phis]++;
+
+       /* determine interference of phi class members */
+       curr_vals[I_CLS_IF_MAX] += size*(size-1)/2;
+       if_free = 1;
+       for (i = 0; i < size-1; ++i)
+               for (o = i+1; o < size; ++o)
+                       if (nodes_interfere(chordal_env, members[i], members[o])) {
+                               if_free = 0;
+                               curr_vals[I_CLS_IF_CNT]++;
+                       }
+
+       /* Does this phi class have an inner interference? */
+       curr_vals[I_CLS_IF_FREE] += if_free;
+
+       xfree(members);
+}
+
+#define is_curr_reg_class(irn) (arch_get_irn_reg_class(chordal_env->arch_env, irn, arch_pos_make_out(0)) == chordal_env->cls)
+
+void copystat_collect_cls(be_chordal_env_t *chordal_env) {
+       ir_node *n;
+       pset *pc;
+
+       for (n = pset_first(all_phi_nodes); n; n = pset_next(all_phi_nodes))
+               if (is_curr_reg_class(n))
+                       stat_phi_node(chordal_env, n);
+
+       for (n = pset_first(all_copy_nodes); n; n = pset_next(all_copy_nodes))
+               if (is_curr_reg_class(n))
+                       stat_copy_node(chordal_env, n);
+
+       for (pc = pset_first(all_phi_classes); pc; pc = pset_next(all_phi_classes)) {
+               ir_node *member = pset_first(pc);
+               pset_break(pc);
+               if (is_curr_reg_class(member))
+                       stat_phi_class(chordal_env, pc);
+       }
 }
 
-void all_stat_dump(void) {
+void copystat_dump(ir_graph *irg) {
+       int i;
+       char buf[1024];
        FILE *out;
-       irg_stat_t *cuml, *curr;
-       /* Compute cumulative values */
-       cuml = irg_list_entry(all_stats->irgs.next);
-       cuml->interferers = 0;
-       cuml->lb = 0;
-       cuml->max = 0;
-       cuml->copies[0] = 0;
-       cuml->copies[1] = 0;
-       cuml->copies[2] = 0;
-       list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain) {
-               int i = 0;
-               cuml->interferers += curr->interferers;
-               cuml->lb += curr->lb;
-               cuml->max += curr->max;
-               for (i=0; i<3; ++i)
-                       cuml->copies[i] += curr->copies[i];
+
+       snprintf(buf, sizeof(buf), "%s__%s", get_irp_prog_name(), get_entity_name(get_irg_entity(irg)));
+       out = ffopen(buf, "stat", "wt");
+
+       fprintf(out, "%s\n", get_irp_prog_name());
+       for (i = 0; i < ASIZE; i++) {
+               if (i >= I_PHI_ARITY_S && i <= I_PHI_ARITY_E)
+                       fprintf(out, "%i %i\n", curr_vals[i], curr_vals[I_PHI_CNT]);
+               else if (i >= I_CLS_SIZE_S && i <= I_CLS_SIZE_E)
+                       fprintf(out, "%i %i\n", curr_vals[i], curr_vals[I_CLS_CNT]);
+               else
+                       fprintf(out, "%i\n", curr_vals[i]);
        }
 
-       /* dump to file */
-       out = ffopen(all_stats->unit_name, "stats", "wt");
-       list_for_each_entry(irg_stat_t, curr, &all_stats->irgs, chain)
-               fprintf(out, "%15s  %3d %3d %3d %3d %3d %3d", curr->irg_name, curr->interferers, curr->lb, curr->copies[0], curr->copies[1], curr->copies[2], curr->max);
+    fclose(out);
+}
+
+void copystat_dump_pretty(ir_graph *irg) {
+       int i;
+       char buf[1024];
+       FILE *out;
+
+       snprintf(buf, sizeof(buf), "%s__%s", get_irp_prog_name(), get_entity_name(get_irg_entity(irg)));
+       out = ffopen(buf, "pstat", "wt");
+
+       fprintf(out, "Nodes     %4d\n", curr_vals[I_ALL_NODES]);
+       fprintf(out, "Blocks    %4d\n", curr_vals[I_BLOCKS]);
+       fprintf(out, "CopyIrn   %4d\n", curr_vals[I_CPY_CNT]);
+
+       fprintf(out, "\nPhis      %4d\n", curr_vals[I_PHI_CNT]);
+       fprintf(out, "... argument types\n");
+       fprintf(out, " Total      %4d\n", curr_vals[I_PHI_ARG_CNT]);
+       fprintf(out, " Self       %4d\n", curr_vals[I_PHI_ARG_SELF]);
+       fprintf(out, " Constants  %4d\n", curr_vals[I_PHI_ARG_CONST]);
+       fprintf(out, " CF-Pred    %4d\n", curr_vals[I_PHI_ARG_PRED]);
+       fprintf(out, " Others     %4d\n", curr_vals[I_PHI_ARG_GLOB]);
+       fprintf(out, "... arities\n");
+       for (i = I_PHI_ARITY_S; i<=I_PHI_ARITY_E; i++)
+               fprintf(out, " %2i %4d\n", i-I_PHI_ARITY_S, curr_vals[i]);
+
+       fprintf(out, "\nPhi classes   %4d\n", curr_vals[I_CLS_CNT]);
+       fprintf(out, " compl. free  %4d\n", curr_vals[I_CLS_IF_FREE]);
+       fprintf(out, " inner intf.  %4d / %4d\n", curr_vals[I_CLS_IF_CNT], curr_vals[I_CLS_IF_MAX]);
+       fprintf(out, "... sizes\n");
+       for (i = I_CLS_SIZE_S; i<=I_CLS_SIZE_E; i++)
+               fprintf(out, " %2i %4d\n", i-I_CLS_SIZE_S, curr_vals[i]);
+       fprintf(out, "... contained phis\n");
+       for (i = I_CLS_PHIS_S; i<=I_CLS_PHIS_E; i++)
+               fprintf(out, " %2i %4d\n", i-I_CLS_PHIS_S, curr_vals[i]);
+
+       fprintf(out, "\nILP stat\n");
+       fprintf(out, " Time %8d\n", curr_vals[I_ILP_TIME]);
+       fprintf(out, " Iter %8d\n", curr_vals[I_ILP_ITER]);
+
+       fprintf(out, "\nCopy stat\n");
+       fprintf(out, " Max  %4d\n", curr_vals[I_COPIES_MAX]);
+       fprintf(out, " Init %4d\n", curr_vals[I_COPIES_INIT]);
+       fprintf(out, " Heur %4d\n", curr_vals[I_COPIES_HEUR]);
+       fprintf(out, " Opt  %4d\n", curr_vals[I_COPIES_OPT]);
+       fprintf(out, " Intf %4d\n", curr_vals[I_COPIES_IF]);
+
        fclose(out);
 }
+
+#endif